Portion of a child safety seat



FIG. 1 is a front elevation view of a portion of a child safety seat showing our new design, showing in a first configuration of use;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in FIGS. 1, 2, and 4-7 are directed to unclaimed features and form no part of the claimed design. 

CLAIM We claim the ornamental design for a portion of a child safety seat, as shown and described. 